from __future__ import annotations
from inspect import getfullargspec
import json
import pprint
import re  # noqa: F401
{{#vendorExtensions.x-py-datetime-imports}}{{#-first}}from datetime import{{/-first}} {{{.}}}{{^-last}},{{/-last}}{{/vendorExtensions.x-py-datetime-imports}}
{{#vendorExtensions.x-py-typing-imports}}{{#-first}}from typing import{{/-first}} {{{.}}}{{^-last}},{{/-last}}{{/vendorExtensions.x-py-typing-imports}}
{{#vendorExtensions.x-py-pydantic-imports}}{{#-first}}from pydantic.v1 import{{/-first}} {{{.}}}{{^-last}},{{/-last}}{{/vendorExtensions.x-py-pydantic-imports}}
{{#vendorExtensions.x-py-model-imports}}
{{{.}}}
{{/vendorExtensions.x-py-model-imports}}
from typing import Any, List
from pydantic.v1 import StrictStr, Field

{{#lambda.uppercase}}{{{classname}}}{{/lambda.uppercase}}_ONE_OF_SCHEMAS = [{{#oneOf}}"{{.}}"{{^-last}}, {{/-last}}{{/oneOf}}]

class {{classname}}({{#parent}}{{{.}}}{{/parent}}{{^parent}}BaseModel{{/parent}}):
    """
    {{{description}}}{{^description}}{{{classname}}}{{/description}}
    """
{{#composedSchemas.oneOf}}
    # data type: {{{dataType}}}
    {{vendorExtensions.x-py-name}}: {{{vendorExtensions.x-py-typing}}}
{{/composedSchemas.oneOf}}
    actual_instance: Any
    one_of_schemas: List[str] = Field({{#lambda.uppercase}}{{{classname}}}{{/lambda.uppercase}}_ONE_OF_SCHEMAS, const=True)

    class Config:
        validate_assignment = True
{{#discriminator}}

    discriminator_value_class_map = {
{{#children}}
        '{{^vendorExtensions.x-discriminator-value}}{{name}}{{/vendorExtensions.x-discriminator-value}}{{#vendorExtensions.x-discriminator-value}}{{{vendorExtensions.x-discriminator-value}}}{{/vendorExtensions.x-discriminator-value}}': '{{{classname}}}'{{^-last}},{{/-last}}
{{/children}}
    }
{{/discriminator}}

    @validator('actual_instance')
    def actual_instance_must_validate_oneof(cls, v):
        {{#isNullable}}
        if v is None:
            return v

        {{/isNullable}}
        instance = cls()
        error_messages = []
        match = 0
        {{#composedSchemas.oneOf}}
        # validate data type: {{{dataType}}}
        {{#isContainer}}
        try:
            instance.{{vendorExtensions.x-py-name}} = v
            match += 1
        except (ValidationError, ValueError) as e:
            error_messages.append(str(e))
        {{/isContainer}}
        {{^isContainer}}
        {{#isPrimitiveType}}
        try:
            instance.{{vendorExtensions.x-py-name}} = v
            match += 1
        except (ValidationError, ValueError) as e:
            error_messages.append(str(e))
        {{/isPrimitiveType}}
        {{^isPrimitiveType}}
        if not isinstance(v, {{{dataType}}}):
            error_messages.append(f"Error! Input type `{type(v)}` is not `{{{dataType}}}`")
        else:
            match += 1

        {{/isPrimitiveType}}
        {{/isContainer}}
        {{/composedSchemas.oneOf}}
        if match > 1:
            # more than 1 match
            raise ValueError("Multiple matches found when deserializing the JSON string into {{{classname}}} with oneOf schemas: {{#oneOf}}{{{.}}}{{^-last}}, {{/-last}}{{/oneOf}}. Details: " + ", ".join(error_messages))
        elif match == 0:
            # no match
            raise ValueError("No match found when deserializing the JSON string into {{{classname}}} with oneOf schemas: {{#oneOf}}{{{.}}}{{^-last}}, {{/-last}}{{/oneOf}}. Details: " + ", ".join(error_messages))
        else:
            return v

    @classmethod
    def from_dict(cls, obj: dict) -> {{{classname}}}:
        return cls.from_json(json.dumps(obj))

    @classmethod
    def from_json(cls, json_str: str) -> {{{classname}}}:
        """Returns the object represented by the json string"""
        instance = cls()
        {{#isNullable}}
        if json_str is None:
            return instance

        {{/isNullable}}
        error_messages = []
        match = 0

        {{#useOneOfDiscriminatorLookup}}
        {{#discriminator}}
        {{#mappedModels}}
        {{#-first}}
        # use oneOf discriminator to lookup the data type
        _data_type = json.loads(json_str).get("{{{propertyBaseName}}}")
        if not _data_type:
            raise ValueError("Failed to lookup data type from the field `{{{propertyBaseName}}}` in the input.")

        {{/-first}}
        # check if data type is `{{{modelName}}}`
        if _data_type == "{{{mappingName}}}":
            instance.actual_instance = {{{modelName}}}.from_json(json_str)
            return instance

        {{/mappedModels}}
        {{/discriminator}}
        {{/useOneOfDiscriminatorLookup}}
        {{#composedSchemas.oneOf}}
        {{#isContainer}}
        # deserialize data into {{{dataType}}}
        try:
            # validation
            instance.{{vendorExtensions.x-py-name}} = json.loads(json_str)
            # assign value to actual_instance
            instance.actual_instance = instance.{{vendorExtensions.x-py-name}}
            match += 1
        except (ValidationError, ValueError) as e:
            error_messages.append(str(e))
        {{/isContainer}}
        {{^isContainer}}
        {{#isPrimitiveType}}
        # deserialize data into {{{dataType}}}
        try:
            # validation
            instance.{{vendorExtensions.x-py-name}} = json.loads(json_str)
            # assign value to actual_instance
            instance.actual_instance = instance.{{vendorExtensions.x-py-name}}
            match += 1
        except (ValidationError, ValueError) as e:
            error_messages.append(str(e))
        {{/isPrimitiveType}}
        {{^isPrimitiveType}}
        # deserialize data into {{{dataType}}}
        try:
            instance.actual_instance = {{{dataType}}}.from_json(json_str)
            match += 1
        except (ValidationError, ValueError) as e:
            error_messages.append(str(e))
        {{/isPrimitiveType}}
        {{/isContainer}}
        {{/composedSchemas.oneOf}}

        if match > 1:
            # more than 1 match
            raise ValueError("Multiple matches found when deserializing the JSON string into {{{classname}}} with oneOf schemas: {{#oneOf}}{{{.}}}{{^-last}}, {{/-last}}{{/oneOf}}. Details: " + ", ".join(error_messages))
        elif match == 0:
            # no match
            raise ValueError("No match found when deserializing the JSON string into {{{classname}}} with oneOf schemas: {{#oneOf}}{{{.}}}{{^-last}}, {{/-last}}{{/oneOf}}. Details: " + ", ".join(error_messages))
        else:
            return instance

    def to_json(self) -> str:
        """Returns the JSON representation of the actual instance"""
        if self.actual_instance is None:
            return "null"

        to_json = getattr(self.actual_instance, "to_json", None)
        if callable(to_json):
            return self.actual_instance.to_json()
        else:
            return json.dumps(self.actual_instance)

    def to_dict(self) -> dict:
        """Returns the dict representation of the actual instance"""
        if self.actual_instance is None:
            return None

        to_dict = getattr(self.actual_instance, "to_dict", None)
        if callable(to_dict):
            return self.actual_instance.to_dict()
        else:
            # primitive type
            return self.actual_instance

    def to_str(self) -> str:
        """Returns the string representation of the actual instance"""
        return pprint.pformat(self.dict())
